Any way to use kerberos for "anonymous" internet users?

[Dodson, Robert (Alliance)]

Does anybody have suggestions on how to employ Kerberos for
"authenticating" an anonymous internet user?  I want to give them a
ticket that maps to a restricted set of permissions appropriate to their
anonymous status.  I came across a draft that referred to using Kerberos
in this way but it appears to have been dropped...never became RFC.
 
Robert Dodson